As longer, full well-stream flowlines are utilized to reduce the costs of deep water and satellite developments, routine production monitoring attains a new level of importance. Of particular interest is the operational impact that blocking agents such as paraffins, asphaltenes, hydrates, and scale can have on the flowlines. Because blockages can reduce and even disrupt production, monitoring flowline performance becomes an economic necessity. This paper considers the application of the backpressure technique as a means of monitoring the growth of blockages in gas flowlines. Using only routine production data, this method quantifies partial blockages by comparing production data to a baseline performance curve. Experimental verification was performed using the LSU 9,460 ft. flowloop of 4 1/2 inch drillpipe. Multirate tests were conducted using methane at 450-610 psig with partial blockages placed in the flowloop. Good agreement with the backpressure model was observed.


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    Titel :

    Evaluation of the backpressure technique for blockage detection in gas flowlines


    Beteiligte:
    Scott, S.L. (Autor:in) / Satterwhite, L.A. (Autor:in)


    Erscheinungsdatum :

    1998


    Format / Umfang :

    Seiten



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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